DE60035408T2 - Motorally driven toothbrush with liquid dispenser and refill system - Google Patents

Motorally driven toothbrush with liquid dispenser and refill system

Info

Publication number
DE60035408T2
DE60035408T2 DE2000635408 DE60035408T DE60035408T2 DE 60035408 T2 DE60035408 T2 DE 60035408T2 DE 2000635408 DE2000635408 DE 2000635408 DE 60035408 T DE60035408 T DE 60035408T DE 60035408 T2 DE60035408 T2 DE 60035408T2
Authority
DE
Germany
Prior art keywords
liquid
element
pump
toothbrush
area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE2000635408
Other languages
German (de)
Other versions
DE60035408D1 (en
Inventor
Scott E. Kirkland HALL
James N. Mercer Island LARIMER
Kevin Bellevue MILLER
Richard Fall City TAYLOR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US229979 priority Critical
Priority to US09/229,979 priority patent/US6402410B1/en
Priority to US09/404,972 priority patent/US6220772B1/en
Application filed by Koninklijke Philips NV filed Critical Koninklijke Philips NV
Priority to PCT/US2000/000435 priority patent/WO2000041645A1/en
Priority to US404972 priority
Publication of DE60035408D1 publication Critical patent/DE60035408D1/en
Application granted granted Critical
Publication of DE60035408T2 publication Critical patent/DE60035408T2/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/225Handles or details thereof
    • A61C17/227Handles or details thereof with reservoirs, e.g. for toothpaste
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/36Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor with rinsing means

Description

  • Technical area
  • These This invention relates generally to liquid dispensing electrical Toothbrushes and more particularly relates to such a toothbrush having an integrated toothbrush container and a refill assembly and a liquid channel assembly having one in the brush head area the toothbrush includes located pump element. The pump element uses the Effect of the moving brush head, around liquid from the integrated container to the bristles on the brush head to move.
  • Background of the invention
  • The effective delivery of an oral dentifrice and / or medicament capable of inhibiting or killing bacteria responsible for dental disease has long been desirable and has been the subject of considerable research effort. A wide variety of devices, both active and passive, have been developed to deliver dentifrices or medicines to the bristles. Such devices have been developed for both manual toothbrushes and electric toothbrushes. Manual toothbrushes usually use a hand-operated pump as in the US Pat U.S. Patent Nos. 4,221,492 granted to Boscardin et al., and 4,413,370 whereas, electric toothbrushes utilize a variety of approaches, including integrated and external active pumping devices comprising various mechanical, pneumatic and hydraulic elements.
  • Some liquid dispensing systems for electric toothbrushes utilize the movement of the toothbrush itself to suck a dentifrice from the container to the bristles, such as in the US Pat U.S. Patent No. 5,309,590 , issued to Giuliani et al., is shown. Representative examples of fluid delivery systems for manual toothbrushes and electric toothbrushes include U.S. Patents No. 3,547,110 issued to Balamuth, 5,066,155 , granted to English, inter alia, 5,208,933 , given to Lustig, and 5,062,728 , assigned to Kuo.
  • The dentifrice container is usually either as in the U.S. Patent No. 5,309,590 shown in the handle of the toothbrush, or, as in the U.S. Patent No. 3,547,110 shown in a separate device. In some cases, the container is disposable such that when the liquid in the container is exhausted, the container itself is discarded and a replacement container inserted. Such a system is in the U.S. Patent No. 4,413,370 shown. In other systems, the container is refillable. Typically, the container contains sufficient liquid for a significant number of individual applications of the liquid dentifrice or medicament.
  • Various systems for dispensing the liquid from the brush head are also known. In some cases, the liquid, as in the U.S. Patent No. 4,221,492 shown discharged from a plurality of openings in the brush head itself, while the liquid in other cases, as in the U.S. Patent No. 4,039,261 , issued to Evans, shown dispensed through the bristles themselves.
  • Liquid dispensing systems however, are generally common hard to use, unreliable and expensive. Many such systems are too complex to be reliable work and / or unable to function properly while others Systems partly due to clogging of the liquid lines or outlet openings or a poor pump performance fail. It is also difficult construct a system with a pump that's small enough to fit into a typical construction of a toothbrush. Often used external pumps that are big and expensive. The pump element, whether integrated or outside, is usually too complex for a lasting, reliable one Operation or too expensive to be usable. For all these reasons, fluid delivery systems are as well as manual Toothbrushes as well as for electric toothbrushes not very successful.
  • by virtue of The potential benefits is a fluid delivery system in one electric toothbrush desirable, that reliable And yet it is designed simply enough that it is practical in the Manufacturing and entertainment is.
  • The invention relates to an electric toothbrush with a fluid delivery system comprising a head portion and a grip portion, the head portion having a brush head portion and being detachable from the grip portion, the fluid delivery system comprising:
    a liquid container adapted to be located in the head region of the electric toothbrush,
    a pump element and associated fluid conduit for moving liquid from the container to the brush head portion of the head portion of the toothbrush, and
    a dispensing member adapted to be located in the brush head, connected to the fluid conduit, and having fluid provided by the pump member allow fluid to exit near bristles located on the brush head.
  • Short description of the drawing
  • 1 Fig. 12 is a schematic view showing a toothbrush embodying the fluid delivery system of the present invention.
  • 2 is a partial exploded view of the head portion of the toothbrush of 1 ,
  • 3 Fig. 10 is a schematic diagram showing a portion of the fluid delivery system of the present invention.
  • The 4A and 4B Figure 12 is a cross-sectional view of a refill valve of the fluid delivery system of the present invention with and without a refill needle therein.
  • 5 is a partial exploded view showing the pump element and the brush head.
  • The 6 and 7 Fig. 4 are cross-sectional views showing the fluid movement between the container and the brush head containing the liquid moving pump element.
  • 8th Fig. 12 is a cross-sectional view showing the discharge valve of the liquid supply system.
  • The 9 to 13 FIG. 4 is a diagram showing the refill assembly of the present invention and the process of refilling the integrated container of the toothbrush of FIG 1 demonstrate.
  • 14 is a plan view of the refill assembly.
  • 15 is a partial exploded view of an alternative embodiment of the pump element of 5 to 8th ,
  • 16 is a cross-sectional view of the pump element of 15 ,
  • 17 is another cross-sectional view of the pump element of 15 ,
  • 18 is a cross-sectional view of the pump space portion of the pump element of 15 .
  • 19 is a schematic representation of an upper portion of the pump element of 15 ,
  • 20 is another cross-sectional view showing the pump chamber area of the pump element of 15 shows.
  • Best embodiment of the invention
  • 1 shows a typical electric toothbrush in which the liquid dispensing and refilling system of the present invention is used. It should be emphasized, however, that the present invention is not limited to the illustrated and described special electric toothbrush or brush head movement. Rather, the principles of the present invention may be applied to a variety of electric toothbrush configurations and configurations, and some aspects of the invention may be used even in a manual toothbrush.
  • The generally with 10 designated electric toothbrush of 1 includes a grip area 12 and a removable head area 14 , In the grip area is a drive unit including an electromagnetic drive part and a battery for moving a brush head 18 which, as will be discussed in more detail below, is attached adjacent to a pivot arm. The toothbrush 10 is by means of a push-on / off switch 19 controlled.
  • 2 is an exploded view, which are the main components of the head area 14 the toothbrush of 1 shows. The head area comprises two matching parts 22 and 24 of the body, which is a holding element 32 are joined together. The part 24 of the body includes a pulled out sign 26 for the brush head 18 , The brush head 18 is on a swivel arm 30 attached, which in turn so as to be between opposite sides of the retaining element 32 extending torsion pin pivot member 33 is fixed around that he can perform a pivoting movement. The swivel arm 30 is by an (not shown) electromagnetic drive part in the grip area 12 The toothbrush is driven on magnetic elements 36 at the end of the swivel arm 30 acts. Construction and operation of such a toothbrush are more detailed in the U.S. Patent No. 5,378,153 , assigned to Giuliani, which is held by the assignee of the present invention.
  • A rubber seal 38 and a plastic ring 40 seal the arm 30 at the parts 22 and 24 of the body, thereby preventing moisture from returning to the head area 14 arrives. A nut connection connects via a screw connection 15 the head area 14 with the grip area 12 , In an inner cavity 46 that of the two connected subareas 22 and 24 of the body is an integrated container 50 at orderly. The integrated container 50 is generally arrow-shaped, about 5.08 cm (2 inches) long, and has flexible, similar plastic front and rear walls joined together along their peripheral edges. The integrated container 50 In the illustrated embodiment, it usually holds sufficient liquid for a plaster application, ie, a "use unit." This relatively small volume of the integrated container is essential in that it provides a liquid container in the removable head region 14 the toothbrush construction of 1 can be arranged. This arrangement has several advantages, including a relatively short liquid transport path and a generally simple construction. Accordingly, if the head area 14 is replaced, for example, when the bristles of the brush head 18 worn out, both the container 50 and the associated fluid supply system part of the replacement unit.
  • In the 2 and 3 extends from the container 50 from a short tube section 52 which is in the lower end of a refill valve 56 fits, which is explained in more detail below. From the side of the refill valve 56 out extends above the entry point of the tube section 52 a flexible fluid line 60 which in the illustrated embodiment is a flexible plastic material having a diameter of about 0.25 inches (0.25 inches) and a length of about 1 inch (2.54 cm). The fluid line 60 closes to a liquid inlet nozzle 62 having a diameter of about 0.127 cm (0.05 inches) and at the proximal end 64 in the brush head 18 extends.
  • The 5 to 8th show the fluid delivery design in the brush head 18 that is a liquid pump 66 , one from the pump 66 in a base element 76 extending fluid supply cavity 68 and a liquid dispensing valve 70 extending from the feed cavity 68 out through the brush head 18 over the area 71 of the brush head up into the bristle area 72 the toothbrush extends comprises.
  • The liquid inlet nozzle 62 extends so far into the brush head 18 that he is the entry area 83 ( 7 ) of the liquid pump 66 touched. The liquid pump 66 is an irregular block of material with a cylindrical passageway extending laterally therefrom 75 , The liquid pump 66 located at one end of the elongated base member 76 , The elongated base element 76 is about 0.0762 cm (0.03 inches) thick and has a cut out or void area 68 up, away from the pump 66 out to about the other end 80 of the base element 76 extends. The cavity area 68 is about 0.0381 cm (0.015 inches) deep in the illustrated embodiment.
  • As in 5 represented, form the liquid pump 66 and the base element 76 in the illustrated embodiment, a unitary element extending into a mating cavity 77 in the lower surface of the brush head inserts. The cavity 77 is adapted to the ends of the cylindrical passage 75 in the pump 66 Reliably seal when the unit is properly in the cavity 77 is arranged. The fluid delivery cavity 68 connects the exit area 85 the pump 66 with the lower end of the dispensing valve 70 , One the cavity 68 in the base element 76 surrounding lip 84 touches a sealing surface 87 in the brush head when the unit of pump and base is in place, providing a fluid-tight seal around the cavity 68 arises. The cavity 68 thus serves as a liquid supply means that the pump 66 with the dispensing valve 70 combines.
  • The pump 66 is provided with opposite recessed corners, wherein the recessed areas each from the opposite open ends of the cylindrical passage 75 around adjacent corners of the block to a point about half way along the adjacent side of the pump 66 extend. This arrangement is most evident in the 6 and 7 shown. A ball 63 , which acts as a piston, moves in the cylindrical passage 75 , The entrance area 83 covers one end of the passage 75 while the exit area 85 the other end of the passage 75 covered. The exit area 85 closes to the fluid supply cavity 68 in the base element. It is thus a gapless liquid channel from the pipe 62 to the cavity 68 available. The ball 63 moves in the cylindrical passage 75 , causing a pumping action on the liquid entering the passageway 75 when the brush head moves from one side to the other during operation.
  • The right game between the ball 63 and the inner surface of the cylindrical passage 75 is for proper pumping with adequate fluid pressure to the valve 70 important. In the illustrated embodiment, the clearance is approximately 0.00381 cm (0.0015 inches).
  • In operation, during the exhaust stroke, when the ball is on the outlet or exhaust 85 for the passage 75 Fluid is moved to both the outlet area and around the piston to the inlet area 83 for the passage 75 too moved. During the return stroke of the piston (towards the inlet area 83 ) forces the ge The dispensing valve closed the liquid to flow around the ball to the outlet area in preparation for the next outlet stroke. The flow rate depends in part on the amplitude of movement of the brush head and is thus dependent on the load of the toothbrush. Is the brush head system a resonance system, as in the U.S. Patent No. 5,378,153 described, the flow rate increases when the bristles touch the teeth. The pumping process takes place with or without dispensing valve at the end of the liquid channel and is self-priming in operation, ie it can be promoted air.
  • Due to the influence of the piston ball 63 , which moves back and forth in the passageway due to the reciprocating motion of the brush head, becomes liquid from the outlet portion 85 pushed out of the pump and can from the liquid tube 62 in the inlet area 83 reach. In the outlet area 85 Fluid moves around the corner of the pump block and along the adjacent side, bounded by the walls of the brushhead cavity into which the pump and base member are fitted. The liquid moves into the cavity 68 in the base element 76 into it, around a small deflector 92 near the end of the cavity 68 around, into the inner passage 94 of the base area 96 the dispensing valve 70 ,
  • The dispensing valve 70 is in 8th shown. The diameter of the inner passage 94 is approximately 0.1778 cm (0.07 inches). The valve 70 is 0.84 inches (0.34 inches) high in the illustrated embodiment. The valve 70 is known as the "duckbill valve" because it has two converging lip areas 98 and 100 at its free end 101 having. The two lip areas 98 and 100 are normally closed, ie compressed, to prevent leakage and / or backflow of liquid. By the reciprocating motion of the brush head and the action of the pump, liquid with sufficient pressure to the two lips 98 and 100 push apart, into the valve 70 The valve shown not only prevents the backflow of fluid, which is a possible source of contamination, but also helps the pump to operate by itself and the flow rate and speed are fixed.
  • The "duckbill valve" 70 is conventional, made of a flexible plastic, to open and close the lip areas 98 and 100 to facilitate. In the illustrated embodiment, the free end of the valve extends 70 about 0.4572 cm (0.18 inches) above the brush head base. It is located both longitudinally and laterally approximately in the middle of the bristles, although this is not required for proper operation of the system.
  • In operation, when the brush head 18 moved from one side to the other, so that the piston ball 63 between the inlet and outlet end of the cylindrical passage 75 moved back and forth, successively small volumes (about 0.00013 cm 3 ) of liquid from the container through the pump 66 and then to the dispensing valve 70 emotional. The lips 98 . 100 of the valve 70 Slightly diverge with each small liquid wave, but close again after the wave is over. The successive amounts of liquid are forced out into the bristle area and brought to the desired tooth area by the action of the moving bristles.
  • Consequently is during the bristle movement a continuous fluid intake (as a small, successive following splashes) to the bristle area. This system has different advantages over existing systems. First, it prevents the continuity of hydration (in the form of successive splashes or pulses) the Effect that the liquid during the brushing period dilute will, as is the case, if the liquid, be it a conventional Dentifrice or an oral medication, at the beginning of the cleaning process is administered. Second, with the present invention, the Effectiveness of the liquid elevated, there the liquid can be transported directly to the area of bristle movement.
  • In the case of the special operation of the illustrated toothbrush, in the way and with the operating features, as in U.S. Patent 5,309,590 As shown, including frequency and amplitude, the effectiveness of the fluid (dentifrice or medicament) is often increased by the cavitation and other effects of the fluid produced by the bristle movement. In addition, there is the precise transport of fluid to specific areas of the mouth of interest, including the gum areas at the gum line and between the teeth.
  • Consequently, the fluid delivery system of the present invention is not only practical and reliable, but also has significant therapeutic efficacy when used under selected conditions of use, such as those caused by the action of the toothbrush as described in U.S. Pat U.S. Patent No. 5,309,590 shown arise.
  • As indicated above, the container has 50 in the illustrated embodiment, a volume for a use unit, ie, the volume is sufficient for a cleaning operation of usual length, ie about two minutes. The system of the present invention also includes a refill system for the use unit container. The refill system is in the 9 to 14 shown.
  • 9 shows the refill device 102 Generally used with the toothbrush of 1 to use. To refill the container designed for a use unit 50 in the head area of the toothbrush becomes the refill device 102 placed over the upper end of the toothbrush with the head portion and brush head portion of the toothbrush facing up into the interior of the refill 102 extend. The refill device includes a housing 104 with a viewing window 106 , which shows an area of the interior of the refilling device, so that the user can determine whether the toothbrush is inserted correctly.
  • 10 shows the different areas of the refill. It includes the housing 104 and an inner core element 110 , The core element 110 includes a lower area 112 which is adapted to receive and connect to an upper portion of the head portion of the toothbrush. The brush head 18 extends through an opening 114 in the core element 110 up. The core element 110 has opposite side rails 116 and 118 on, which is on its outside 119 from a lower edge 117 of the core element extend upward. The rails 116 and 118 engage in corresponding (not shown) channels that form the counterpart to the inside 120 of the housing 104 one.
  • In this arrangement, the core element can 110 Reliable over a defined distance in the housing 104 move up and down without turning or moving from one side to the other. From the top of the lower area 112 of the core element 110 from upwards extends a narrow, elongated element 122 with a horizontal approach 124 at the upper end thereof and, adjacent to the top of the lower portion, two spaced wing members 126 and 128 at the base of the same. The lower area 112 of the core element 110 includes at its upper end, adjacent to the wing element 128 , also a flat surface area 130 , Through this flat surface area 130 go a small opening 132 therethrough. The opening 132 Conveniently and easily picks up a refill needle of the refill.
  • Above the core element 110 is a pump assembly 140 arranged inside a refill container 111 contains. Inside the pump assembly 140 is a filling needle 142 arranged, which is oriented vertically, wherein the base region 141 the needle on a gasket set 144 is fixed, the sealing, the inner peripheral surface of the pump chamber in a pump room area 145 the pump assembly 140 fits. At the top of the pump assembly 140 there is an opening 150 that with the refill container 111 in the pump assembly communicates. An upper element 154 snaps on an upper edge 156 the pump assembly 140 one. In the middle of the upper element 154 there is a well-shaped area 158 whose bottom is a (in 10 partially shown) opening 160 which, depending on the rotational position of the upper element with the opening 150 in the pump assembly is made to coincide or is not brought to coincidence. The refill container 111 can through these two openings 160 and 150 be filled when the upper element is in the correct position, so that cover the two openings.
  • The 11 to 13 are cross-sectional views illustrating the sequence of steps of refilling the container 50 for a use unit in the toothbrush. In 11 the toothbrush has just been placed in the refill, with the core element 110 located at its lowest position. In this position, the approach remains 124 of the stretched element 122 in a receiving slot 170 in the refill, as is the case when there is no toothbrush in the refill. In this position, the lower end penetrates 164 the filling needle 142 just like that through the opening 132 in the area 130 of the core element. The needle base 141 and the gasket set 144 are at their lowest position in the pump room 145 , A feather 174 in the pump room 145 has an endeavor to keep the needle base and the gasket set at their lowest position. The room inlet valve 176 at the bottom of the pump room 145 is in its closed (lowered) position as shown. The body of the needle 142 is by means of the seal 178 to the lower edge element 149 of the room 145 sealed off.
  • When the toothbrush by a user continues into the core element 110 is pushed in, the specially designed curved shoulders of the head portion of the toothbrush press against the wing members 126 . 128 at the base of the stretched element 122 ( 10 ). This will be the stretched element 122 pressed sufficiently far back, so that the approach 124 at the upper end of the stretched element from the receiving slot 170 moved out, whereby the core element in the refilling device can move upwards. More upward pressure on the toothbrush by the user has a further upward movement of the core element 110 entail the filling needle 142 wei through the opening 132 in the core element and in the refill valve 56 of (in 2 shown) header 14 the toothbrush penetrates.
  • 12 shows a middle position during the movement of the core element, in which the top of the core element 110 to a shoulder area 180 the filling needle 142 encounters. To reach this center position, the core element in the refill has moved up, but neither the needle nor the seal set has moved 144 at which the base 141 the filling needle 142 is attached in the pump room 145 emotional. The inlet valve 176 stays closed.
  • In 13 the further upward movement of the toothbrush has a further upward movement of the core element 110 in the refill assembly with the core member facing up, against the shoulder area 180 the filling needle 142 pushes. The needle 142 , their base section 141 and the gasket set 144 move in the pump room 145 against the action of the spring 174 upwards, making between the needle base 141 and the lower end of the pump room 145 a volume 187 arises. Due to the negative pressure, liquid from the refill container through the upwardly moving inlet valve 176 in the volume 187 sucked. The volume 187 fills with fluid while the needle base 141 and the gasket set 144 in the pump room 145 against the action of the spring 174 move upwards.
  • The filling needle 142 points around its perimeter where it lies on the base area 141 meets, spaced openings. In particular, the needle 142 via a "crosshair structure" with the base area 141 connected, wherein the gap between the adjacent regions of the reticle structure is open to the hollow interior of the needle. When the core element reaches its highest position inside the refill assembly, the volume indicates 187 has a capacity of about 4 ml and is completely filled with liquid from the refill container 111 filled.
  • At this time, the brush head is pulled back a little. When the brush is pulled back, the spring penetrates 174 the gasket set 144 , the base area 141 the needle and the filling needle 142 even in the pump room 145 down, thereby increasing the volume 187 reduced. The liquid in the volume 187 passes through the reticle openings at the base of the filling needle down into the hollow interior of the filling needle 142 into, through and out of the opening 188 pushed out at the bottom of the needle.
  • At this time, as explained above, the opening is located 188 in the needle 142 inside the refill valve in the toothbrush. In the 4A and 4B the needle extends 142 down through an upper sealing element 189 in the valve 56 until about the lower end 190 , The valve 56 ensures in the area 193 for a seal around the needle 142 around, whereby the backflow of liquid from the needle through the outlet opening 194 attached to the fluid line 60 connects, is prevented. Out of the opening 188 liquid entering the needle moves through the opening 192 in the liquid line 52 ( 3 ) leading to the integrated container 50 leads.
  • The from the refill device into the container 50 In the illustrated embodiment, the amount of liquid moved is approximately 4 milliliters, which corresponds to the amount of liquid appropriate for a use unit. However, other quantities could be dispensed to the integrated container if desired, depending on the capacity of the container. When the toothbrush is pulled far enough out of the refill assembly, the needle, base area and seal set are as in 12 returned to its original position in the refill. The toothbrush is then removed from the refill and is ready for a single fluid application, ie, a single brushing operation. Refilling the integrated container 50 takes place before every cleaning process.
  • Even though the illustrated embodiment a container for one comprises only use unit, wherein the container is filled for each cleaning operation, can the container be modified so that liquid for more as an application is ready. The external refill assembly is still for a comfortable refill of the container of Benefit as they use a relatively small liquid container in the toothbrush allows which saves space and less demands on the pump be put.
  • It Consequently, a new liquid dispensing and refill system for electrical Toothbrushes described. The system includes a small container for a use unit in a removable head section of the toothbrush. From the container too a small, in the brush head located pump element, a liquid line extends. When the brush head is moved back and forth, the pump element provides for one Movement of the liquid from the container to a dispensing valve in the head of the toothbrush, through which the liquid moved to the bristles.
  • The integrated container is refilled before each use with a separate refill device, in which the toothbrush is inserted. By the movement of the brush head relative to Refill device in a specific order moves liquid from the refill through a filling needle and the refill valve in the head of the toothbrush in the integrated container for a use unit.
  • One to the pump structure of 5 to 8th alternative embodiment is in the 15 to 20 shown. The complete pump, generally with 202 is partially in the base area 203 of the brush head 204 educated. There is also a cover element 214 Part of the complete pump 202 , Liquid, such as a dentifrice, is passed through an inlet port 206 to the pump 202 delivered. Part of the base 203 trained area of the pump 202 is a cylindrical pump bore 208 , In the pump bore is a movable spherical piston element 210 , which is also referred to as a piston ball.
  • At the exit end 226 the pump bore 208 there is a plug element 212 that in the pump hole 208 has a special design. From the exit end 226 the pump bore extends from a flat liquid outlet section 215 to a check valve 216 that directs fluid to the bristles. The alternative embodiment of 15 to 20 is generally more efficient and produces a higher pressure than the previously described embodiment.
  • As in particular in the 15 to 18 is shown, the inlet nozzle conveys 206 Liquid, such as a dentifrice, through the proximal end 219 of the brush head 204 to a short channel 220 in the brush head ( 16 ) is formed and the distal end 222 of the neck 206 with an inlet pipe 224 connects to the pump bore 208 at the inlet end 227 , In the illustrated embodiment, the inlet nozzle is located 224 at the upper end of the pump bore 208 ,
  • The pump bore 208 has in the illustrated embodiment a diameter which is slightly larger than the diameter of the spherical piston element 210 which is 2 mm in the illustrated embodiment. It is desirable that the diameter of the pump bore is only slightly larger than the diameter of the piston member 210 is to maintain the pressure in the pump bore and thus very little liquid passes the piston member when the piston member moves in the bore to pump liquid from the pump bore. In the illustrated embodiment, the pump bore has a diameter of about 2.1 mm and is about 4.5 mm long.
  • At the exit end 226 the pump bore 208 there is a plug 212 , The stopper 212 has a (the pump bore facing) inside 232 on, which is concavely curved, ie disc-shaped, as most clearly in 20 is shown. In the illustrated embodiment, the rounding is slightly greater than the curvature of the spherical piston element. In the illustrated embodiment, the plug is made of elastomeric material.
  • During its movement in the pump bore 208 the spherical piston element contacts the surface 232 at the end of the liquid delivery stroke, during which liquid is forced by the movement of the piston member from the inlet end of the pump bore to the discharge end. In the illustrated embodiment, the piston member is made of a tungsten carbide material. The higher density of tungsten carbide, for example, compared to steel, appears to increase the pressure and performance of the pump.
  • The power influencing pump sizes include the diameter of the spherical piston member, the cross-sectional area of the spherical piston and the weight of the spherical piston. The clearance between the piston member and the bore also affects performance. The fluid in the pump bore is through the outlet located at the top of the pump bore 234 pumped out ( 20 ).
  • From the pump bore 208 pumped out liquid moves directly into the liquid outlet section 215 which in the illustrated embodiment is about 0.635 cm (0.25 in) long by 0.254 in (0.10 in) wide and 0.0508 cm (0.02 in) high and in the brush head and bottom 214a of the cover 214 is defined. The cover element 214 extends from a point at the beginning of the channel 220 at the neck 206 to a point beyond the end 229 the liquid outlet channel 215 ,
  • In 19 indicates the area of the liquid exit section that passes through the bottom 214a the cover 214 is defined, two wing-like approaches 236 and 238 on, which extend from the lateral longitudinal edges of the liquid outlet channel to each other and narrow the outlet channel at this point. The two approaches 236 and 238 are generally triangular in shape and narrow the channel over a distance of approximately 0.2032 cm (0.08 inches) from a width of approximately 0.254 inches (0.10 inches) to a width of approximately 0.1016 cm (0.04 inches) Inch). While the two approaches 236 and 238 the out of the pump bore 208 pumped out liquid in the direction of the outlet opening in the brush head, they act as a liquid director, which opposes the liquid flow in the conveying direction less resistance than in the opposite direction. Beyond the approaches 236 and 238 there is a small element 240 , which is located centrally between the two sides of the outlet channel and from the bottom 214a the cover 214 hangs down in the outlet channel. The exit channel ends so that its sides are angled inwards and then meet in an arcuate area.
  • In the base area 203 of the brush head is directly under the element 240 a circular passage 244 whose diameter is approximately 0.10 inches in the illustrated embodiment. The passage 244 passes through the brush head and opens to the surface from which the bristles emerge. In the passage 244 is the exit check valve 216 arranged so that it extends between the bristles of the brush head surface away. In the illustrated embodiment, the check valve 216 in contrast to the duckbill design of the 5 to 8th a wedge-shaped construction. Overall, as stated above, the embodiment of the pump 15 to 20 generally more effective and produces better pressure than the previously disclosed pump.
  • Even though a preferred embodiment of the invention has been disclosed herein for purposes of illustration; it is understood that in this embodiment, various changes, Modifications and substitutions can be incorporated without to deviate from the invention, which by the claims such follows is defined.
  • TEXT IN THE FIGURES
  • 20
    • liquid out - liquid in

Claims (21)

  1. Electric toothbrush ( 10 ) with a fluid delivery system having a head portion ( 14 ) and a grip area ( 12 ), wherein the head area ( 14 ) a brush head part ( 18 ) and from the grip area ( 12 ) and the liquid supply system comprises: a liquid container ( 50 ), which is designed so that it is in the head area ( 14 ) of the electric toothbrush ( 10 ), a pump element ( 66 ) and an associated liquid line to remove liquid from the container ( 50 ) to the brush head part ( 18 ) of the header area ( 14 ) of the toothbrush, and a delivery element ( 70 ), which is designed so that it is in the brush head ( 18 ) is connected to the liquid line and with the pump element ( 66 ) provided pressure liquid in the vicinity of bristles located on the brush head ( 72 ), characterized in that the pump element ( 66 ) in the brush head part ( 18 ) is located.
  2. Toothbrush according to Claim 1, in which the pump element ( 66 ) a room ( 75 ) and a ball ( 63 ) which moves in the space in response to the movement of the brush head during operation of the toothbrush, the movement of the ball causing liquid to move from the container means into the pumping element and then from the pumping element to the dispensing element in the brushing head.
  3. A toothbrush according to claim 2, wherein the space ( 75 ) is cylindrical and extends laterally from the brush head and in which the brush head movement takes place from one side to the other.
  4. Toothbrush according to claim 1, which is outside the container ( 50 ) refill valve element ( 56 ), wherein the liquid line connects the container, the refill valve element, the pump element and the discharge element.
  5. Toothbrush according to Claim 1, in which the delivery element ( 70 ) is a valve which is arranged in the brush head such that a free end region ( 101 ) of the valve to a point which extends above a base surface of the brush head in the middle of bristle areas (FIG. 72 ) of the brush head is located.
  6. Toothbrush according to Claim 5, in which the free end region ( 101 ) of the valve a pair of flexible, normally closed lips ( 98 . 100 ), which open so that liquid can escape between them when a liquid pressure is exerted on them by the action of the pump element.
  7. Toothbrush according to Claim 1, in which the pump element is mounted on a base element ( 76 ) is arranged inside a channel ( 68 ) containing the outlet of the pump element ( 66 ) with the delivery element ( 70 ) connects.
  8. toothbrush according to claim 1, wherein the container means a capacity of about a use unit liquid exhibit.
  9. toothbrush according to claim 1, wherein the liquid a dentifrice is.
  10. toothbrush according to claim 1, wherein the liquid a selected one Drug for the treatment of a mouth disease.
  11. Toothbrush according to Claim 4, in which the refill valve element ( 56 ) Means for receiving a needle of a refilling apparatus and an opening which connects to the container, wherein liquid is moved from an external source of liquid through the needle into the container.
  12. toothbrush according to claim 11, wherein the refill valve is a sealing area includes running backwards of liquid out of the needle through the refill valve prevented.
  13. toothbrush according to claim 2 with: a pump element to this from the Liquid container supplied liquid to that in the brush head area the toothbrush to move located dispensing element, wherein the pump element a Contains space, the one liquid inlet area and a liquid exit area and a ball which is located in the space between the entrance and the exit area in response to movement of the brushhead area during the Operating the toothbrush moves, whereby the movement of the ball in the room leads to fluid under the influence of the ball from the container into the pump element along the space between the entrance and the exit area and then with a pressure out of the pump element that is sufficient around the liquid to the delivery element and then to move out of the dispensing element.
  14. toothbrush according to claim 1 with: a pump element to liquid supplied thereto to one in a brush head area the toothbrush to move located delivery element, wherein the pump element so is formed so that it is located in the brush head area of the toothbrush, wherein the pump element includes a pump bore space, the an inlet end and an outlet end, and a piston element, that is in the space between the inlet end and the outlet end in response to the movement of the brush head during the Operating the toothbrush moves, whereby liquid, which enters the pump bore space at the inlet end, below the Influence of the piston element along and out of the outlet end the same moves out, wherein the pump element further comprises a Liquid outlet channel area which extends from the exit end of the pump bore space of The latter extends away, wherein the outlet channel region is formed is that it is connected to the delivery element.
  15. toothbrush according to claim 14, wherein the pump bore space at its outlet end a concave surface includes, wherein the concave surface is approximately the same curvature as that of the piston member, wherein the piston member is spherical, the liquid from the pump bore through an outlet separated from the concave surface is pumped and the piston element during operation, at the end a funding phase a pumping cycle that comes into contact with the concave surface.
  16. toothbrush according to claim 14, wherein the concave surface is part of the outlet end the pump bore space forming plug is.
  17. toothbrush according to claim 14, having two protrusions extending from opposite longitudinal sides the liquid outlet channel extend inwardly, resulting in a narrowing of the width of the Fluid exit channel results, and located between the outlet end of the pump bore and the opening in the brush head area are located.
  18. toothbrush according to claim 17, wherein the projections are conical, so that the width of the liquid outlet channel over the Length of projections gradually decreases.
  19. toothbrush according to claim 8, wherein the largest width the liquid outlet channel approximately 0.10 inches and wherein the channel between the spaced projections on about 0.04 Inches narrowed.
  20. toothbrush The device according to claim 14, wherein the pump is cut out Area in the brush head and a matching cover member covering the cut-out portion is defined.
  21. toothbrush according to claim 14, wherein the piston element made of tungsten carbide is.
DE2000635408 1999-01-13 2000-01-07 Motorally driven toothbrush with liquid dispenser and refill system Active DE60035408T2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US229979 1994-04-19
US09/229,979 US6402410B1 (en) 1999-01-13 1999-01-13 Fluid-dispensing and refilling system for a power toothbrush
US09/404,972 US6220772B1 (en) 1999-01-13 1999-09-24 Fluid-dispensing and refilling system for a power toothbrush
PCT/US2000/000435 WO2000041645A1 (en) 1999-01-13 2000-01-07 Fluid-dispensing and refilling system for a power toothbrush
US404972 2003-03-31

Publications (2)

Publication Number Publication Date
DE60035408D1 DE60035408D1 (en) 2007-08-16
DE60035408T2 true DE60035408T2 (en) 2008-03-06

Family

ID=26923807

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2000635408 Active DE60035408T2 (en) 1999-01-13 2000-01-07 Motorally driven toothbrush with liquid dispenser and refill system

Country Status (9)

Country Link
US (1) US6220772B1 (en)
EP (1) EP1143876B1 (en)
JP (1) JP2002534209A (en)
KR (1) KR20010102975A (en)
CN (2) CN100404001C (en)
AT (1) AT366091T (en)
AU (1) AU2495700A (en)
DE (1) DE60035408T2 (en)
WO (1) WO2000041645A1 (en)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8182473B2 (en) 1999-01-08 2012-05-22 Palomar Medical Technologies Cooling system for a photocosmetic device
US7135033B2 (en) 2002-05-23 2006-11-14 Palomar Medical Technologies, Inc. Phototreatment device for use with coolants and topical substances
US6517532B1 (en) 1997-05-15 2003-02-11 Palomar Medical Technologies, Inc. Light energy delivery head
ES2245506T3 (en) 1998-03-12 2006-01-01 Palomar Medical Technologies, Inc. Electromagnetic radiation application system on skin.
AU7568698A (en) 1997-05-15 1998-12-08 General Hospital Corporation, The Method and apparatus for dermatology treatment
DE60226964D1 (en) 2001-02-12 2008-07-17 Koninkl Philips Electronics Nv Schallantriebs toothbrush with multiple containers
US6725490B2 (en) * 2001-11-06 2004-04-27 The Procter & Gamble Company Complex motion toothbrush
US6766824B2 (en) * 2001-12-20 2004-07-27 Koninklijke Philips Electronics N.V. Fluid control valve and a feedback control system therefor
DE10212925B4 (en) * 2002-03-22 2004-07-08 Ferton Holding S.A. Handpiece for a dental Abrasivstrahlgerät
US7276058B2 (en) 2002-06-19 2007-10-02 Palomar Medical Technologies, Inc. Method and apparatus for treatment of cutaneous and subcutaneous conditions
US6679642B1 (en) 2002-07-15 2004-01-20 John B. Dillingham Toothbrush with reservoir
US6685375B1 (en) * 2002-09-04 2004-02-03 John Crocker Toothpaste-dispensing toothbrush
US6622333B1 (en) 2002-09-04 2003-09-23 Rehco, Llc Pneumatic-operated toothbrush
DE10255390A1 (en) 2002-11-28 2004-06-17 Braun Gmbh Electric toothbrush
WO2005000149A1 (en) * 2003-06-27 2005-01-06 Koninklijke Philips Electronics, N.V. Brushhead attachment system for a power toothbrush
US7080980B2 (en) * 2003-07-03 2006-07-25 Michael Klupt Dental hygiene device
US7722278B2 (en) * 2003-12-11 2010-05-25 Koninklijke Philips Electronics N.V. Twin duckbill valve assembly
US7112003B2 (en) * 2003-12-23 2006-09-26 Edwin Frison Combined toothbrush, toothpaste and mouthwash device
US8317424B2 (en) * 2004-06-03 2012-11-27 The Gillette Company Oral care device
US20050272001A1 (en) * 2004-06-03 2005-12-08 Blain Christopher C Oral care device
JP4820364B2 (en) * 2004-06-17 2011-11-24 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Structural arrangement for fluid dispensing electric toothbrush
US7794415B2 (en) * 2004-07-13 2010-09-14 S.C. Johnson & Son, Inc. Surface treatment device
US20060078844A1 (en) * 2004-10-07 2006-04-13 Goldman Paul D Oral care systems, oral care devices and methods of use
US7856985B2 (en) 2005-04-22 2010-12-28 Cynosure, Inc. Method of treatment body tissue using a non-uniform laser beam
US8444416B2 (en) * 2005-04-26 2013-05-21 Braun Gmbh Valves for personal care devices
EP1903980B1 (en) * 2005-06-30 2015-10-14 Koninklijke Philips N.V. A reciprocating workpiece device with a drive system seeking the resonance of the driven system portion thereof
US20070017582A1 (en) * 2005-07-20 2007-01-25 Chenvainu Alexander T Fluid couplings
WO2007035444A2 (en) 2005-09-15 2007-03-29 Palomar Medical Technologies, Inc. Skin optical characterization device
RU2008115915A (en) * 2005-11-29 2010-01-10 Дзе Проктер Энд Гэмбл Компани (US) Dosing TOOTHBRUSH
DE102005061491A1 (en) * 2005-12-22 2007-07-05 Braun Gmbh Head for a toothbrush has an array of bristles and a coupling device for connecting onto the hand part of a toothbrush as well as a tube for supplying toothpaste
GB0526560D0 (en) * 2005-12-29 2006-02-08 Unilever Plc Oral treatment device
US8281824B2 (en) * 2006-03-24 2012-10-09 Koninklijke Philips Electronics N.V. Instrument, a system and a container for provisioning a device for personal care treatment, and a device for personal care treatment with such a container
US20080003048A1 (en) * 2006-06-13 2008-01-03 Karen Glassman Dentifrice-Dispensing Toothbrush
US7586957B2 (en) 2006-08-02 2009-09-08 Cynosure, Inc Picosecond laser apparatus and methods for its operation and use
DE102007028184A1 (en) 2007-06-20 2008-12-24 Braun Gmbh Brush head for a toothbrush
US8128638B2 (en) * 2007-08-28 2012-03-06 Emed, Inc. Handheld microdermabrasion device
CA2726259C (en) * 2008-06-04 2014-07-29 Colgate-Palmolive Company Oral care implement with cavitation system
KR100995284B1 (en) 2008-08-28 2010-11-19 신현우 a tooth management system
JP5505414B2 (en) * 2009-06-04 2014-05-28 サンスター株式会社 Oral care equipment
US9919168B2 (en) 2009-07-23 2018-03-20 Palomar Medical Technologies, Inc. Method for improvement of cellulite appearance
US9370408B2 (en) 2009-08-17 2016-06-21 Sunstar Suisse Sa. Vibrational frequency adjustment device and water flow type oral cavity cleaning device using same
US8398326B2 (en) 2010-03-04 2013-03-19 Colgate-Palmolive Company Fluid dispensing oral care implement
KR20140144304A (en) 2012-04-18 2014-12-18 싸이노슈어, 인코포레이티드 Picosecond laser apparatus and methods for treating target tissues with same
EP2973894A2 (en) 2013-03-15 2016-01-20 Cynosure, Inc. Picosecond optical radiation systems and methods of use
WO2015097579A1 (en) 2013-12-24 2015-07-02 Braun Gmbh Personal hygiene implement
USD765987S1 (en) 2015-05-27 2016-09-13 Colgate-Palmolive Company Oral care implement
US10206766B2 (en) 2016-08-04 2019-02-19 Airway Medix S.A. Toothbrush system for treating intubated patients
US10299978B2 (en) 2016-10-02 2019-05-28 Airway Medix S.A System, method and kit for oral care
CN106420095B (en) * 2016-10-31 2018-03-30 深圳市艾珀尔电子科技有限公司 The method of multifunctional electric toothbrush and cleaning tooth
USD848746S1 (en) * 2016-11-02 2019-05-21 Dyson Technology Limited Dental cleaning appliance
USD854329S1 (en) * 2016-11-02 2019-07-23 Dyson Technology Limited Dental appliance
USD836345S1 (en) 2016-11-02 2018-12-25 Dyson Technology Limited Handle for dental appliance
USD854330S1 (en) * 2016-11-02 2019-07-23 Dyson Technology Limited Dental appliance
USD865367S1 (en) 2016-11-02 2019-11-05 Dyson Technology Limited Head for dental appliance
USD847513S1 (en) 2016-11-02 2019-05-07 Dyson Technology Limited Head for dental appliance
USD846884S1 (en) 2016-11-02 2019-04-30 Dyson Technology Limited Head for dental appliance
USD854328S1 (en) * 2016-11-02 2019-07-23 Dyson Technology Limited Dental appliance
CA174300S (en) 2016-11-02 2018-04-18 Dyson Technology Ltd Electric toothbrush
USD848747S1 (en) * 2016-11-02 2019-05-21 Dyson Technology Limited Dental appliance
JP1595509S (en) 2016-11-02 2018-01-22
JP1595510S (en) 2016-11-02 2018-01-22
USD836346S1 (en) 2016-11-02 2018-12-25 Dyson Technology Limited Handle for dental appliance

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3178754A (en) * 1963-05-15 1965-04-20 Alton A Cleverdon Electric toothbrush
US3400996A (en) * 1966-11-15 1968-09-10 Edward W Macrum Toothbrush with integral dentifrice dispenser
DE1632384A1 (en) * 1967-11-28 1971-06-24 Braun Ag Electric toothbrush with flushing device
US3547110A (en) 1968-04-18 1970-12-15 Ultrasonic Systems Method and apparatus for maintaining tooth and gingival structures with ultrasonic energy
US3613698A (en) * 1969-09-26 1971-10-19 Daniel W Fox Dental hygiene unit
US3636947A (en) * 1970-12-03 1972-01-25 Ultrasonic Systems Ultrasonic home dental instrument and method
US3809977A (en) * 1971-02-26 1974-05-07 Ultrasonic Systems Ultrasonic kits and motor systems
US3938897A (en) * 1972-03-08 1976-02-17 Loren S. Fond Toothbrush with dentifrice cartridge
US4039261A (en) 1975-10-14 1977-08-02 Evans James L Disposable toothbrush
US4013370A (en) * 1975-12-01 1977-03-22 Antoine Gingras Fountain tooth-brush
US4030845A (en) * 1976-05-17 1977-06-21 Deckert Dennis D Toothbrush with self-contained dentifrice and disposable handle
DE7736610U1 (en) * 1976-12-02 1978-06-29 Boscardin, Lucio, Camparada Toothbrush
US4201490A (en) * 1978-09-07 1980-05-06 Angelo Augustino D Toothbrush
US4413370A (en) 1981-08-17 1983-11-08 T. D. Williamson, Inc. Unitary pig for use in a pipeline
US4619009A (en) * 1982-12-24 1986-10-28 Durr-Dental Gmbh & Co. Kg Tooth cleaning apparatus
US4692047A (en) * 1983-04-20 1987-09-08 Sasuke Endo Brush for applying material in liquid or emulsion form
US4583563A (en) * 1983-08-12 1986-04-22 Turner Burton S Combined toothbrush and toothpaste dispenser
US4787847A (en) * 1985-03-26 1988-11-29 The University Of Washington Dental hygiene device
US4655627A (en) * 1985-05-17 1987-04-07 Bradley George G Brush with self-sealing reservoir having a convertible actuator
US4630326A (en) * 1985-07-15 1986-12-23 Stevens Robert B Micro-stroke mechanical toothbrush
US4787765A (en) * 1986-02-18 1988-11-29 Youti Kuo Dentifrice dispensing toothbrush
GB2201887A (en) * 1987-02-06 1988-09-14 Alistair Goold Tooth cleaning instrument
US5066155A (en) * 1988-08-29 1991-11-19 English Philip H Toothbrush and paste dispenser
US4961698A (en) * 1989-06-16 1990-10-09 Vlock D G Ultrasonic device with additive chamber
US4979503A (en) * 1989-12-01 1990-12-25 Hydrodent Laboratories Inc. Hand-held oral irrigating device
US5062728A (en) * 1990-07-31 1991-11-05 Youti Kuo Dentifrice dispensing toothbrush with replaceable cartridge
US5208933A (en) * 1990-11-09 1993-05-11 L. Paul Lustig Dental tool with liquid dispensing, and cartridge
CA2097505C (en) * 1990-12-13 2003-04-08 David Giuliani Dentifrice-medication dispensing toothbrush
US5378153A (en) * 1992-02-07 1995-01-03 Gemtech, Inc. High performance acoustical cleaning apparatus for teeth
US5301381A (en) 1992-12-07 1994-04-12 Klupt Michael F Toothbrush system
US5393153A (en) * 1993-12-01 1995-02-28 Corporation Roch-Jean Bouthillier Et Fils Inc. Toothpaste dispenser
US5346369A (en) * 1993-12-16 1994-09-13 Miller Jr William L Bilge pump actuated by wave motion
FI956061A (en) * 1995-12-15 1997-06-16 Puurunen Juha Pekka pump Toothbrush

Also Published As

Publication number Publication date
CN1226969C (en) 2005-11-16
EP1143876B1 (en) 2007-07-04
CN1589753A (en) 2005-03-09
CN100404001C (en) 2008-07-23
AU2495700A (en) 2000-08-01
DE60035408D1 (en) 2007-08-16
JP2002534209A (en) 2002-10-15
KR20010102975A (en) 2001-11-17
EP1143876A1 (en) 2001-10-17
WO2000041645A1 (en) 2000-07-20
AT366091T (en) 2007-07-15
CN1351483A (en) 2002-05-29
US6220772B1 (en) 2001-04-24

Similar Documents

Publication Publication Date Title
CA2724722C (en) Oral care implement with liquid delivery system
US5944033A (en) Dental flossing device and method therefor
US7051394B2 (en) Dentition cleaning device and system
US5142723A (en) Tooth cleaning apparatus having powered brush and spray
US5465445A (en) Hydraulically operated toothbrush
US8920168B2 (en) Oral care implement having fluid delivery system
CA2403134C (en) Oral irrigator and brush assembly
US6602071B1 (en) Hand-held self-contained cleaning system
US20180368563A1 (en) Dispenser
EP1353710B1 (en) Endodontic irrigator tips having fiber covered cannulas
EP0565598B1 (en) Dentifrice-medication dispensing toothbrush
US3144867A (en) Dental prophylactic
KR101473539B1 (en) Oral care system
US5286192A (en) Oral irrigation apparatus
US4824368A (en) Oral hygiene appliances
US4564005A (en) Oral irrigating device
KR101454094B1 (en) Oral care fluid delivery system
CA1277160C (en) Irrigation appliance
US20050066456A1 (en) Dentition cleaning device and system
US5365624A (en) Apparatus for automatic and simultaneous caring for teeth and gums
EP1335679B1 (en) Apparatus for treating teeth
US7059853B2 (en) Oral irrigation and/or brushing devices and/or methods
JP5980816B2 (en) Oral care device and system
US4787845A (en) Oral irrigator
US8617090B2 (en) Oral care device

Legal Events

Date Code Title Description
8364 No opposition during term of opposition